1. Mitundu yosiyanasiyana ya kuyeretsa: mapaipi, zopangira, mavavu, ndi zina zambiri za mapaipi oyeretsedwa amadzi opangidwa ndi kampani yathu.
2. Zofunikira zamadzi: Madzi omwe amagwiritsidwa ntchito pazotsatira zonse zotsatirazi ndi madzi osungunula, ndipo Party A imayenera kugwirizana ndi ntchito zopangira madzi.
3. Njira zodzitetezera: Njira zotsatirazi zodzitetezera zimatsatiridwa mumadzi otsekemera:
(1) Wogwiritsa ntchitoyo amavala chigoba choyera, choonekera bwino cha gasi, zovala zoteteza asidi, ndi magolovesi.
(2) Zochita zonse ziyenera kuthira madzi mumtsuko kaye, kenaka onjezerani mankhwala, osati mwanjira ina, ndikuyambitsanso.
(3) Madzi oyeretsera ndi odutsa ayenera kutayidwa ngati salowerera ndale, ndipo zotayirazo ziyenera kutulutsidwa kuchokera ku chimbudzi cha chipinda chopangira madzi kuti chipindule chilengedwe.

Kuyeretsa dongosolo
1. Kuyeretsatu
(1) Chilinganizo: Madzi osungunula pa kutentha kwa chipinda.
(2) Njira yogwirira ntchito: Gwiritsani ntchito pampu yamadzi yozungulira kuti musunge kuthamanga kwa 2/3bar ndikuzungulira ndi mpope wamadzi. Pambuyo pa mphindi 15, tsegulani valavu yokhetsa ndikutulutsa pamene mukuzungulira.
(3) Kutentha: kutentha kwachipinda
(4) Nthawi: Mphindi 15
(5) Kukhetsa madzi oyeretsedwa.

2. Kuyeretsa Lye
(1) Fomula: Konzani mankhwala oyeretsera a sodium hydrochloride, onjezani madzi otentha (kutentha kosachepera 70 ℃) kuti mupange 1% (volume concentration) lye.
(2) Njira yogwiritsira ntchito: Kuzungulira ndi mpope kwa mphindi zosachepera 30, ndiyeno mutulutse.
(3) Kutentha: 70 ℃
(4) Nthawi: Mphindi 30
(5) Kukhetsa njira yoyeretsera.

3. Muzimutsuka ndi madzi osakaniza:
(1) Chilinganizo: Madzi osungunula pa kutentha kwa chipinda.
(2) Njira yogwirira ntchito: Gwiritsani ntchito mpope wamadzi wozungulira kuti musunge kuthamanga kwa 2/3bar kuti muzungulire ndi mpope wamadzi. Pambuyo pa mphindi 30, tsegulani valavu yokhetsa ndikutulutsa pamene mukuzungulira.
(3) Kutentha: kutentha kwachipinda
(4) Nthawi: Mphindi 15
(5) Kukhetsa madzi oyeretsedwa.

Pulogalamu ya Passivation
1. Kuthamanga kwa asidi
(1) Fomula: Gwiritsani ntchito madzi osungunula ndi asidi wa nitric kuti mukonze 8% ya asidi.
(2) Njira yogwiritsira ntchito: Sungani mpope wamadzi wozungulira pamtunda wa 2/3bar ndikuzungulira kwa 60min. Pambuyo pa mphindi 60, onjezani sodium hydroxide yoyenera mpaka mtengo wa PH ukhale wofanana ndi 7, tsegulani valavu yokhetsa, ndikutulutsani pamene mukuzungulira.
(3) Kutentha: 49℃-52℃
(4) Nthawi: Mphindi 60
(5) Siyani njira ya passivation.

2. Kutsuka madzi oyeretsedwa
(1) Chilinganizo: Madzi osungunula pa kutentha kwa chipinda.
(2) Njira yogwiritsira ntchito: Gwiritsani ntchito mpope wamadzi wozungulira kuti musunge kupanikizika kwa 2/3bar kuti muyendetse ndi pampu yamadzi, mutsegule valve yothira pambuyo pa mphindi 5, ndikutulutsa pamene mukuzungulira.
(3) Kutentha: kutentha kwachipinda
(4) Nthawi: Mphindi 5
(5) Kukhetsa madzi oyeretsedwa.

3. Muzimutsuka ndi madzi oyeretsedwa
(1) Chilinganizo: Madzi osungunula pa kutentha kwa chipinda.
(2) Njira yogwirira ntchito: Sungani mpope wamadzi wozungulira pa 2/3bar ndikuzungulira ndi mpope wamadzi mpaka pH yotayirira isakhale yopanda ndale.
(3) Kutentha: kutentha kwachipinda
(4) Nthawi: zosachepera mphindi 30
(5) Kukhetsa madzi oyeretsedwa.

Zindikirani: Mukatsuka ndikudutsa, chosefera cha fyuluta yolondola chiyenera kuchotsedwa kuti chisawonongeke pazitsulo